Vapor-generator.



No. 772,488. PATENTBD OCT. 18, 1904.

G. E. WITT. VAPOR GENBRATUR.

APPLIOATION FILED FEB. 11, 1903.

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Patented October 18, 1904.

.UNITED STATES- PATENT A GEORGE E. IZVITT, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO FRANK H. BATES, OF SAN FRANCISCO, CALIFORNIA.

VAPOR-GENERATOR.

srncrrrcg'rron forming part of Letters Patent no. 772,488, dated October '18, 1904. g

I 'Application filod lebruary 11,1903. Serial no. 142,910. (No model.)

To? all. whom it may concern:

Be it known that I, Gnonen E.- Wrr'r, a citi-' ,zen of the United States, residing at 2952 Fol som street, San Francisco, in the county of San Francisco and State of- California, have invented certain new and useful Improvements in Vapor-Generators; and I do hereby declare the, following to be a full, clear, and

- exact description of the same, such as-will enable others skilled in the art to which itappertains to make and use the same. 1

- My invention relates generally to improve ments in gas-generators; but to vbe more specific it is a generator designed to utilize the heavy viscous crude oil'smnow i so extensively found on the Pacific coast.

, In themajorityof generators now on the market it has been. found almost impossible to practically copegwith the gummy residue from the oil, as it rapidly fouls the generator and makes thorough cleansing a frequent necessity.- In my generator I overcome these ob ections by providing means for-automatuseful ends my invention consists in matters similar numerals of reference'designate cor--- respondlngparts, Figure l -isaside elevation,

of the complete device.alportioii'offthe outer wall being broken away ltoijshow the relativev arrangementof th'einterior-parts. Fig. 2 is a transverse section takeninjthe direction of the arrows in Fig. 1. j

will-now set forth'the construction of my generator and subsequentlyfle'xplain"the op- 1 eration of thesame. v

1 The mainbody of. the device consists ofga hollow drum 2,v formed with aspreading hollow base, as shown fin Fig. .2.. ,This drum 2" is cast with one end i'closed, while the opposite head'is held in 'place with the square- I headed screws a. -Adapted tov revolve within the drum 2 and on suitable packed bearings 1 in the heads thereof is the inner hollow drum 1.. The shafts 7 and 9, which are connected to opposite ends of the inner drum 1, are hollow and form a continuous conduit to and from the interior of the drum. Keyed'to the shaft 7 is the small worm-gear13, to which is transmitted motion from the belt-wheel 14.. The worm and gear'are shown by means of dotted lines in' Fig. 2.

The remaining elements of the device I will explain as the operation of the generator is followed. 4 t Assuming that oil isvfedtothe interior of the drum 2 through the pipe'5until it reaches the level indicated by the dotted line 11' and thatthe drum '1 is slowly revolving, it is manifest that as the drum 1 is partly i-mmersedlin the oil the latter will cling to its outer periph:

ery and follow itsupward movement. Now

as the exhaust from the engine. ispassed through the drum 1. by means of the hollow shafts 7 and 9Fthe drum will become heated and the clinging oil transformed into vapor, which is led to'theengine through the pipe3. 1

Asthis oil is heated a thick sticky residue clings to the periphery of the druml, and if some means were not provided bywhichto cleanse this drum thedevice wouldbeof very little practical value. x I accomplish the auto-j. I matic cleansing of this drum by means of-the horizontal knife-10, which bears against the lowest .levelof the drum andscrapes its surface clean before itasc'endswit'h a fresh coat; -ing of-oil.- This thick material drops to the base of the drum 2,-from which it isled by th'e'drain-cock A. In order to retain a con stant flowof oil, I have provided the small pipe 6,- which has a neck reaching to the desiredlevel-of' the oil. It is manifest that by the'use of this pipe the level is preserved and the comparatively lighter oil keptin contact with the revolving drum. The cock.8'is. provided" as an air-inlet to the interior of the outer drum-while the stuffing-box 12 permits of the union between the stationary and revoluble pipefroi'n the engine.

Itwill'bereadily seen from the foregoing description that I have provided a very sim-.

ple and effective generator automatic in its action and one in which the parts are kept constantly free from objectionable matter.

Having thus fully described my invention, What I claim, and desire to secure by Letters Patent, is

1'. A device of the class described consisting of an outer stationary drum, a revolving drum Within said former drum, hollow shafts leadof an outer stationary drum, a revolving" drum within said former drum, hollow shafts leading through said outer drum to the interimof said revolvingdrum, a stationary knife within said stationary drum and bearing against the periphery of said revolving drum, an oil-inlet to said outer drum, an oil-outlet to preserve the level of the oil relative to said revolving drum, a vapor-outlet from said statiol'lary drum and means for conducting the heating;

medium to the revolving drum substantially as and for the purpose set forth.

In testimony whereof laliix my signature in presence of two witnesses.

GEORGE E. WITT. \Vitnesses:

A. J. HENRY, ORPHA C. PooR. 

